Answer: 4, 3, 2, 1
Explanation:
Microtubules originate near the nucleus of animal cells, and the positive ends project outward.
Dynein would be used for moving melanosomes back to the nucleus in light-colored cells.
Kinesin would be responsible for moving melanosomes outward to generate dark-colored cells.
The melanosomes move along microtubule tracks using motor proteins.
<u>Answer</u>: all the answers apply
Cardiovascular disease can affect both the heart and blood vessels and the most common sign is chest pain. It is the leading cause of death in the United States with it being responsible for one in every four deaths. Quitting smoking will improve the health of the heart and blood vessels as well as greatly reducing the risk of recurrent heat attack and cardiovascular death.
Blood refers to a fluid connective tissue that comprises fluid known as plasma, in which the cells of the blood are suspended. The two prime constituents of the blood are formed elements or blood cells and plasma.
Plasma comprises 50 to 60 percent of the entire volume of blood. It comprises about 91 percent of water, due to which the viscosity of the blood is sustained.
Plasma conducts platelets and blood cells along with various of other substances, like vitamins, hormones, amino acids, and other nutrients. Due to the hydrophilic property of blood, it can mediate the hydrophilic molecules safely all through the body.